Leviticus 24:16, 23

And whoever blasphemes the name of the LORD shall surely be put to death. All the congregation shall certainly stone him, the stranger as well as him who is born in the land. When he blasphemes the name of the LORD, he shall be put to death.

Then Moses spoke to the children of Israel; and they took outside the camp him who had cursed, and stoned him with stones. So the children of Israel did as the LORD commanded Moses.